Challah Baked on the Grill

INGREDIENTS

• 1 1/4 tablespoon active dry yeast
• 2 eggs, lightly beaten
• 2 tablespoons olive oil
• 1 egg yolk stirred with a bit of water
• 3/4 cups warm water
• 2 to 3 tablespoons poppy seeds
• 1 tablespoon honey
• 3 1/2 to 4 cups all-purpose flour
• 1 teaspoon salt